- 2002/04 - 現在 情報科学センター センター長
- 2000/04 - 現在 Professor
- 2000/04/01 - 現在 Kokushikan University Physical Education, Physical Education
- 2000/04 - 現在 Professor
- 1984/04/01 - 2000/03/31 Kokushikan University Center for Information Science
- 1988/04 - 2000/03 Associate Professor
- 1984/04 - 1988/03 Associate Professor
- 1980/04/01 - 1984/03/31 Kokushikan University Center for Information Science
- 1980/04 - 1984/03 Lecturer
- 1977/04/01 - 1980/03/31 Kokushikan University
- 1977/04 - 1980/03 Lecturer
- Kokushikan University Physical Education, Physical Education
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